C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

700R4 Transmission Problem. Ideas?

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Old Nov 4, 2006 | 05:55 PM
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Default 700R4 Transmission Problem. Ideas?

My 700R4 only goes into 3rd and reverse, but otherwise it works great. The shifter moves to the position, but the gears don't engage. It takes off in 3rd and never changes. When the shifter goes into 1st or 2nd, nothing happens. Park is normal. It can be driven anywhere with no other problems. Any ideas?
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Old Nov 4, 2006 | 06:17 PM
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Although I'm getting ready to rebuild one, I'm no automatic expert. But sit tight. PeteK, our resident A/T guru, will be along at some point and provide guidance.
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Old Nov 4, 2006 | 10:08 PM
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Excellent! I'm not much of a transmission guy myself! Thanks!
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Old Nov 4, 2006 | 10:22 PM
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Off the top of my head, you may have broken the forward sprag. I will have to check the prefernce chart to be sure. I have been hitting the booze tonight, so my hunch may be off a bit
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Old Nov 5, 2006 | 02:43 PM
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Anybody? Anybody? Bueller? lol
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Old Nov 5, 2006 | 05:18 PM
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You likely lost the forward clutch pack.
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Old Nov 5, 2006 | 10:03 PM
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Originally Posted by Pete K
You likely lost the forward clutch pack.
Cool, that's what I'll check first. Thanks!
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Old Nov 5, 2006 | 10:14 PM
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Usually, once you pull the pump and go inside, the problem is pretty easy to find. Post the results.
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Old Nov 6, 2006 | 09:45 AM
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Originally Posted by Pete K
Usually, once you pull the pump and go inside, the problem is pretty easy to find. Post the results.
I will. Thanks!
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